A unit rate in math is the expression of a rate in a quantity of one. For example, 60 miles per hour represents a commonly used unit rate. Similarly, 30 students per school bus also represents a unit rate. Continue Reading
The symptoms of sinus infection and allergies can be similar. Both can cause symptoms such as runny nose, congestion, headaches, nighttime cough, and difficulty breathing. You are more likely to have a sinus infection if you have fever, colored nasal discharge, and facial or sinus pain.
1 Most sinus infections are due to virals. 2  The main symptoms of a sinus headache are pain and tenderness over the affected area.  The pain from a sinus headache sometimes is worse in the morning due to mucous collection throughout the night.